The Emperor wakes from a sound sleep to the touch of a communication-spell.
...He does have combat-training, but it's been years, and he is not yet processing especially until half a second has passed.
<is not what it appears please stay calm>
The communication-spell conveys much less "flavor" of its sender's mind than true Mindspeech. It conveys some, though, especially if both mages involved are very, very skillful with it. And different varieties of the spell also register differently, to someone with the training to notice such subtle shifts. All of the Emperor's personal guard can get a communication-spell through his bedroom shielding. They are compulsioned against ever teaching it to anyone else, and they were taught a short-range version.
The Emperor recognizes the flavor of this variety. It's not the one his guards use. It's the long-range variant on it. Bastran knows it. He could count the number of others who (officially) do on the fingers of one hand. Altarrin is one of them. And Bastran has exchanged a dozen hours of communication-spell messages with his Archmage-General. He is - moderately - confident he knows that is who it was.
All of these thoughts are crammed into the remaining fraction of a second before a Gate-terminus snaps up from nowhere, horizontal in midair, and that shouldn't be possible but if anyone could do it, it's Altarrin - and, indeed, it's Altarrin who falls through.
The Emperor's mage-sight is already open. He raises a hand to try to shield his Archmage-General his friend and doesn't quite, actually, have time – what's happening –
He doesn't have time to reach for Caris but he can sense his lover's life-force and starts to throw a shield over him and then Caris is - gone, some otherworldly magic -
And then, unsurprisingly, his personal guard bursts through the door and hits Altarrin's unconscious body with a pile of other spells.
Things are happening too fast. He opens his mouth to - he doesn’t even know what to say yet, they’re flinging shields over him and Altarrin is unconscious and maybe dying on the floor after his impossible Gate and Caris is gone.
At which point a second set of mages burst into his bedroom, and it’s not until they’re hitting his Archmage-General with a dozen other spells that would theoretically be non-lethal if he weren’t VERY OBVIOUSLY incapacitated, unconscious and maybe dying - that he recognizes the uniforms.
He manages a strangled yell of “STOP!” but it’s too late, someone not in view is casting a Gate, under Altarrin’s limp body, and he’s falling through, and Bastran does not actually have time to orient enough to say words before it’s all over.
What.
WHAT.
Why isn’t Caris here
Another few seconds slide past before Bastran pieces together that this is an Office of Inquiry operation and - if he’s judged the man right - then Mage-Inquisitor Kastil is nearby.
The Emperor…does not even have a shadow of a hypothesis for why…this…but he aims a communication-spell at him. A rarely-known variant, short range but unusually hard to intercept.
<Explain?>